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Karumana Gounder Kolandaswamy 2 Articles
Study on the Behavior of Dengue Viruses during Outbreaks with Reference to Entomological and Laboratory Surveillance in the Cuddalore, Nagapattinam, and Tirunelveli Districts of Tamil Nadu, India
Parasuraman Basker, Karumana Gounder Kolandaswamy
Osong Public Health Res Perspect. 2015;6(3):143-158.   Published online June 30, 2015
DOI: https://doi.org/10.1016/j.phrp.2015.05.001
  • 3,539 View
  • 30 Download
  • 6 Crossref
AbstractAbstract PDF
Objectives
This study was carried out in order to understand the behavior of dengue viruses through the entomological and laboratory surveillance of outbreaks. The aim of the study was to provide additional research to support current knowledge of epidemiological, clinical, and laboratory diagnosis of dengue virus and ultimately to use this information to forecast dengue as well as to justify intervention measures.
Methods
Data on the presence of Aedes larvae in human dwellings during the entomological surveillance in Cuddalore, Nagapattinam, and Tirunelveli dengue outbreaks were taken to compute indices, namely the House Index (HI), Container index (CI), and the Breteau Index (BI). Standard procedures were followed for nonstructural Protein 1 (NS1) and immunoglobulin M enzyme linked immunosorbent assay for the confirmation of dengue. Serovar confirmation was made in the Kottayam field station of the Vector Control Research Center, Puducherry.
Results
Larval indices HI < 2–3% and BI < 20 contributed to halting the outbreak. Incubation of the dengue viruses in humans was detected at 15 days, NS1 was identified as a tool for the early diagnosis of dengue cases and its presence indicated the need to implement all available interventions. It was also discovered that it is helpful to search for hidden habitats of Aedes when dengue cases have not been reduced even after the sustainable management of the larval indices, HI < 5% and BI < 20. Based on the observed incidences of stopping dengue outbreaks, it was learnt that neighborhood areas of the outbreak villages, around 400 m, should have permissible larval indices < 5% HI and BI < 20. Heterogeneous serovars that led to dengue hemorrhagic fever and Dengue Shock Syndrome (DSS) were identified using reverse transcription polymerase chain reaction and reconfirmed in the field as DEN-1 and DEN-3 viruses and were circulating in Tirunelveli during the outbreak.
Conclusion
The behaviors of dengue viruses experienced in experimental, clinical, epidemiological, entomological, and laboratory surveillance did not deviate from observations in the field during dengue outbreaks in the Cuddalore, Nagapattinam, and Tirunelveli districts of Tamil Nadu, India.

Citations

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    PLOS Neglected Tropical Diseases.2023; 17(3): e0011173.     CrossRef
  • Application of Nanomaterials in the Field of New Energy Environment and Economic Benefit Analysis
    Shuai Xu, Haoying An, Jiahai Dai, Haichang Zhang
    Advances in Materials Science and Engineering.2022; 2022: 1.     CrossRef
  • A study on stegomyia indices in dengue control: a fuzzy approach
    Sayani Adak, Soovoojeet Jana
    Soft Computing.2021; 25(1): 699.     CrossRef
  • Epidemiology and challenges of dengue surveillance in the WHO South-East Asia Region
    Tsheten Tsheten, Darren J Gray, Archie C A Clements, Kinley Wangdi
    Transactions of The Royal Society of Tropical Medi.2021; 115(6): 583.     CrossRef
  • Assessing the interplay between dengue incidence and weather in Jakarta via a clustering integrated multiple regression model
    Muhammad Fakhruddin, Prama Setia Putra, Karunia Putra Wijaya, Ardhasena Sopaheluwakan, Ratna Satyaningsih, Kurnia Endah Komalasari, Mamenun, Sumiati, Sapto Wahyu Indratno, Nuning Nuraini, Thomas Götz, Edy Soewono
    Ecological Complexity.2019; 39: 100768.     CrossRef
  • Emergence of Dengue Virus 4 as the Predominant Serotype during the Outbreak of 2017 in South India
    P.Ferdinamarie Sharmila, K. Vanathy, Barathidasan Rajamani, Venkatesh Kaliaperumal, Rahul Dhodapkar
    Indian Journal of Medical Microbiology.2019; 37(3): 393.     CrossRef
Study on the Prevalence of Leptospirosis among Fever Cases Reported from Private Clinics in the Urban areas of Villupuram District, Tamil Nadu, India
Parasuraman Basker, Pichai Kannan, Karumana Gounder Kolandaswamy
Osong Public Health Res Perspect. 2014;5(1):54-67.   Published online February 28, 2014
DOI: https://doi.org/10.1016/j.phrp.2014.01.003
  • 3,297 View
  • 29 Download
  • 3 Crossref
AbstractAbstract PDF
Objectives
To know the prevalence of leptospirosis cases reported in private clinics among fever cases in Villupuram District, Tamil Nadu, India to know its real magnitude of the problem and to diagnose Leptospirosis among fever cases from differential diagnosis.
Methods
1502 Blood serum samples collected from three urban towns namely Kallakurichi (Latitude: 11° 73′ N; Longitude: 78° 97′ E), Villupuram (Latitude: 11° 75′ N; Longitude: 79° 92′ E) and Thindivanam (Latitude: 12° 25′ N; Longitude: 79° 65′ E) in fifteen clinics based on case definition of leptospirosis delineated by the National Vector Borne Disease Control Programme (NVBDCP), Government of India. Samples were tested in the laboratory of the Zonal Entomological Team (ZET), Cuddalore with Macroscopic Slide Agglutination Test (MSAT) and Ig-M ELISA.
Result
There were 65 positive cases detected from 1502 blood serum samples in both MSAT and Ig-M ELISA. It could be known that there was 4% cases contributed from private clinics among fever cases. From this study, further it was known that all age groups of people affected irrespective of sexes based on their living condition associated with the environment prevailed of the disease.
Conclusion
From this study, it was quantified that 4% of cases reported in private clinics among fever cases and its findings ascertained both the importance of differential diagnosis as well as reports that should be included to the Government for knowing its real magnitude for planning.

Citations

Citations to this article as recorded by  
  • Seroprevalence of acute leptospirosis in a tertiary care hospital of western India
    Bhumika Baveja, Meghna S. Palewar, Suverna Joshi, Rajesh Karyakarte
    MGM Journal of Medical Sciences.2022; 9(4): 517.     CrossRef
  • Leptospirosis in Wardha District, Central India—Analysis of hospital based surveillance data
    Pradeep Deshmukh, Rahul Narang, Jyoti Jain, Manish Jain, Kiran Pote, Pratibha Narang, R.Vimal Raj, Praveen Kumar, Paluru Vijayachari
    Clinical Epidemiology and Global Health.2019; 7(1): 102.     CrossRef
  • Effects of gamma radiation exposure on PANI-Fe(X) -Ni(1−X) (X = 0.2,0.4,0.6,0.8) nanocomposite thin film for Leptospira detection
    Huda Abdullah, Jamal Jurait, Ravinder Singh Sidhu Amrik Singh, Iskandar Yahya, Siti Khairani Bejo
    Materials Research Express.2018; 6(2): 026507.     CrossRef

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